How many movies have Sadatoshi Matsuzaka and Setsuko Unno collaborated on?

They have worked on 3 movies together! Their first movie together was Hamtaro: Adventures in Ham-Ham Land (2001) and was their highest rated movie together. They have not worked together since Yo-kai Watch Jam: Yo-kai Academy Y - Can a Cat Be a Hero? (2019). They are most known for their fantasy films together.